| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very poor | 11 |
2.9%
|
| 2 | Poor | 56 |
14.8%
|
| 3 | OK | 214 |
56.5%
|
| 4 | Good | 89 |
23.5%
|
| 5 | Very good | 9 |
2.4%
|
| Sysmiss | 641 |